コード例 #1
0
static Region computeNonFastScrollableRegion(FrameView* frameView)
{
    Region nonFastScrollableRegion;

    HashSet<FrameView*> childFrameViews;
    for (HashSet<RefPtr<Widget> >::const_iterator it = frameView->children()->begin(), end = frameView->children()->end(); it != end; ++it) {
        if ((*it)->isFrameView())
            childFrameViews.add(static_cast<FrameView*>(it->get()));
    }

    if (const FrameView::ScrollableAreaSet* scrollableAreas = frameView->scrollableAreas()) {
        for (FrameView::ScrollableAreaSet::const_iterator it = scrollableAreas->begin(), end = scrollableAreas->end(); it != end; ++it) {
            ScrollableArea* scrollableArea = *it;

            // Check if this area can be scrolled at all.
            // If this scrollable area is a frame view that itself has scrollable areas, then we need to add it to the region.
            if ((!scrollableArea->horizontalScrollbar() || !scrollableArea->horizontalScrollbar()->enabled())
                && (!scrollableArea->verticalScrollbar() || !scrollableArea->verticalScrollbar()->enabled())
                && (!childFrameViews.contains(static_cast<FrameView*>(scrollableArea)) || !static_cast<FrameView*>(scrollableArea)->scrollableAreas()))
                    continue;

            nonFastScrollableRegion.unite(scrollableArea->scrollableAreaBoundingBox());
        }
    }

    return nonFastScrollableRegion;
}
コード例 #2
0
static Region computeNonFastScrollableRegion(FrameView* frameView)
{
    Region nonFastScrollableRegion;

        if (const FrameView::ScrollableAreaSet* scrollableAreas = frameView->scrollableAreas()) {
        for (FrameView::ScrollableAreaSet::const_iterator it = scrollableAreas->begin(), end = scrollableAreas->end(); it != end; ++it) {
            ScrollableArea* scrollableArea = *it;

            // Check if this area can be scrolled at all.
            if ((!scrollableArea->horizontalScrollbar() || !scrollableArea->horizontalScrollbar()->enabled())
                && (!scrollableArea->verticalScrollbar() || !scrollableArea->verticalScrollbar()->enabled()))
                continue;

            nonFastScrollableRegion.unite(scrollableArea->scrollableAreaBoundingBox());
        }
    }

    return nonFastScrollableRegion;
}